Sky Castle: Never-ending Rivalry

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Yeh Suh has beaten Hye Na in grades but is surpassed by Hye Na in different areas. Despite having an overwhelming advantage, Yeh Suh can't dominate Hye Na. If this continues, Yeh Suh will lose in the school president election as well. Meanwhile, at the Joonam University Hospital, Professor Hwang and Professor Kang are still competing.